Base spiral matrix

src/lib.rs

@@ -30,6 +30,7 @@ pub mod minesweeper;
 pub mod alphametics;
 pub mod binary_search;
 pub mod all_your_base;
+pub mod spiral_matrix;
 pub mod perfect_numbers;
 pub mod rna_transcription;
 pub mod largest_series_product;

src/spiral_matrix.rs

@@ -0,0 +1,3 @@
+pub fn spiral_matrix(size: u32) -> Vec<Vec<u32>> {
+    todo!("Function that returns the spiral matrix of square size {size}");
+}

tests/libtest.rs

@@ -34,3 +34,4 @@ mod largest_series_product;
 mod parallel_letter_frequency;
 mod rna_transcription;
 mod binary_search;
+mod spiral_matrix;

tests/spiral_matrix/mod.rs

@@ -0,0 +1,62 @@
+use exercism::spiral_matrix::spiral_matrix;
+#[test]
+fn empty_spiral() {
+    let expected: Vec<Vec<u32>> = Vec::new();
+    assert_eq!(spiral_matrix(0), expected);
+}
+
+#[test]
+#[ignore]
+fn size_one_spiral() {
+    let expected: Vec<Vec<u32>> = vec![vec![1]];
+    assert_eq!(spiral_matrix(1), expected);
+}
+
+#[test]
+#[ignore]
+fn size_two_spiral() {
+    let expected: Vec<Vec<u32>> = vec![vec![1, 2], vec![4, 3]];
+    assert_eq!(spiral_matrix(2), expected);
+
+}
+
+#[test]
+#[ignore]
+fn size_three_spiral() {
+    #[rustfmt::skip]
+    let expected: Vec<Vec<u32>> = vec![
+        vec![1, 2, 3],
+        vec![8, 9, 4],
+        vec![7, 6, 5],
+
+    ];
+    assert_eq!(spiral_matrix(3), expected);
+}
+
+#[test]
+#[ignore]
+fn size_four_spiral() {
+    let expected: Vec<Vec<u32>> = vec![
+        vec![1, 2, 3, 4],
+        vec![12, 13, 14, 5],
+        vec![11, 16, 15, 6],
+        vec![10, 9, 8, 7],
+    ];
+
+    assert_eq!(spiral_matrix(4), expected);
+}
+
+#[test]
+#[ignore]
+fn size_five_spiral() {
+
+    let expected: Vec<Vec<u32>> = vec![
+        vec![1, 2, 3, 4, 5],
+        vec![16, 17, 18, 19, 6],
+        vec![15, 24, 25, 20, 7],
+        vec![14, 23, 22, 21, 8],
+        vec![13, 12, 11, 10, 9],
+    ];
+    assert_eq!(spiral_matrix(5), expected);
+
+}